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June 2011, Vol. 33

Performance tweaks for virtualization technologies

Over the past 10 years, virtualization technologies have allowed IT engineers to consolidate, save money and help their businesses grow. But just how much of an effect has virtualization had? Any engineer working with modern server technology would be foolish not to utilize the resources on these machines for business growth and expansion. By placing numerous virtual machines (VMs) on top a physical host, data centers are running more streamlined and have a smaller hardware footprint. A new Hewlett-Packard Co. ProLiant Server with an Intel Corp. eight-core processor is capable of running five to six VMs without much trouble. So why hold on to dying hardware when it can be virtualized, mothballed and recycled? As virtualizing gets easier, network engineers are becoming increasingly comfortable with the technology. However, there is a downside to this ease of use. Lately, many companies have begun to buy a server, load the workloads on a storage area network (SAN), deploy the hypervisor and load the VMs. Although this approach may...

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